The rolling hills of Tennessee’s Cumberland Plateau are home to some of the nation’s most beautiful and productive fields and forests.
Underneath those fields is a very different kind of beauty.
On most Saturdays, hundreds of music fans from all over the world trek a kilometer into the Cumberland Cavern
to enjoy the American music form 110 meters below ground.
Bluegrass Underground was launched in 2008.
The show features artists playing so-called American Roots Music,